CN110374078A - A kind of dual anti-blocking pile punching apparatus of waterpower opening and closing jack-up unit and method - Google Patents
A kind of dual anti-blocking pile punching apparatus of waterpower opening and closing jack-up unit and method Download PDFInfo
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- CN110374078A CN110374078A CN201910651485.3A CN201910651485A CN110374078A CN 110374078 A CN110374078 A CN 110374078A CN 201910651485 A CN201910651485 A CN 201910651485A CN 110374078 A CN110374078 A CN 110374078A
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- valve pipe
- blocking valve
- packing piece
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B17/00—Artificial islands mounted on piles or like supports, e.g. platforms on raisable legs or offshore constructions; Construction methods therefor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D9/00—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof
- E02D9/02—Removing sheet piles bulkheads, piles, mould-pipes or other moulds or parts thereof by withdrawing
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- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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Abstract
The invention discloses a kind of dual anti-blocking pile punching apparatus of waterpower opening and closing jack-up unit and methods, and end cap top surface is axially disposed slide slot, and end cap top surface was provided with multiple inlet openings along slide slot one week；End cap sidewalls are internally provided with positioning card；Shield and end cap lower end are tightly connected；Anti-blocking valve pipe, the anti-blocking valve pipe include storage fluid and slide column, slide column and connect with the storage fluid closed end, slide column and are mounted in the slide slot, and storage fluid openings end is protruded into shield；First back-moving spring is provided between storage fluid tip and end cap；The storage fluid is circumferentially arranged multiple water inlets；And packing piece is slided, the packing piece that slides is set in outside anti-blocking valve pipe, and is slided packing piece upper end and limited by positioning card；It slides and is provided with second back-moving spring between packing piece and shield.The configuration of the present invention is simple is reliable, and no fragile part substantially increases the performance of pile punching apparatus.
Description
Technical field
The present invention relates to extra large oily production technique field, in particular to a kind of waterpower opens and closes the dual anti-blocking punching stake of jack-up unit
Device and method.
Background technique
Jack-up unit is one of most widely used Platform Type of Offshore petroleum development of resources.In jack-up unit operation
After the completion, ship landing pile pulling is needed to hurry to next setting, since submarine soil character is complicated, spud leg enters mud mistake when platform pitching pile
The reasons such as depth or soil body reflux lead to that platform pile extraction resistance is excessive and pile pulling is difficult, carry out rushing stake operation at this time, reduce mud
Soil guarantees the smooth pile pulling of platform to shoe adsorption capacity.But during platform pile shoe injection seabed, seabed silt often " reverse irrigation " into
Jetting pipeline causes jack-up unit to rush the blocking of stake mouth, reaches expected to make to rush stake effect difficulty, causes to pull out on platform leg tired
It is difficult.
In the prior art, it generallys use installation half-round shield and rushes stake mouth to protect, but in big displacement finite element mould
All show the situation that cannot avoid jetting pipeline blocked completely using the form of shield in quasi- and in field application.For fear of
Rush the smaller size of stake mouth, general 3~5 centimetres, and the Complicated Geologic Condition that may be met in seabed injection, it is based on computer
Structure is complicated for detecting and controlling system or the pile punching apparatus of hydraulic control, and size is larger, difficult in maintenance, for rushing for jack-up unit
Stake system suitability is poor.
Chinese patent CN101302763 uses hydraulic control, core component flow gauge, hydraulic control device, control
Valve is inside shoe, and structure is complicated, is not easy to safeguard, due to needing additional power source and circuit pipeline, higher cost, and
It is easily damaged and be not easy to overhaul in sea bottom complex environment.
Summary of the invention
The purpose of the present invention is to provide anti-block apparatus and method that stake mouth is rushed in a kind of opening and closing of waterpower, to solve jetting pipeline
The problem of being blocked during jack-up unit shoe injection seabed by seabed silt.
To achieve the goals above, the present invention provides the following technical solutions.
A kind of waterpower opening and closing dual anti-blocking pile punching apparatus of jack-up unit, comprising:
End cap, the end cap top surface is axially disposed slide slot, and end cap top surface was provided with multiple along slide slot one week
Inlet opening；End cap sidewalls are internally provided with positioning card；
Shield, the shield and end cap lower end are tightly connected；
Anti-blocking valve pipe, the anti-blocking valve pipe include storage fluid and slide column, and storage fluid has storage flow chamber, the one end Chu Liuti
Closing, another end opening；It slides column to connect with the storage fluid closed end, slides column and be mounted in the slide slot, Chu Liu
Body open end is protruded into shield；First back-moving spring is provided between storage fluid tip and end cap；The storage fluid is along week
It is multiple with the water inlets that are connected to of storage flow chamber to being provided with；
And packing piece is slided, the packing piece that slides is set in outside anti-blocking valve pipe, and it is logical to slide packing piece upper end
Cross positioning card limit；It slides and is provided with second back-moving spring between packing piece and shield；
Wherein, when the open end of the storage fluid of anti-blocking valve pipe and shield bottom contact, water inlet is in sliding packing
Inside piece, slides packing piece and connect with the anti-blocking valve seal of tube；When anti-blocking valve pipe is moved upwards along slide slot, water inlet, which exposes, to be slided
Outside row packing piece, inlet opening is connected to water inlet.
The end cap includes cylindrical barrel body and lid, and lid is arranged in cylindrical barrel body upper end, and lid and upper side wall top
There are spacing at portion edge.
The positioning card is the retainer ring of circular ring structure；Positioning card is arranged in cylindrical barrel body interior lower end.
The slide slot includes that the first sliding groove for sliding column sliding and second for storing up fluid top slide are sliding
Slot, first sliding groove and second sliding slot are separately positioned on lid two sides, and sealing at the top of first sliding groove, first sliding groove bottom is slided with second
The connection of groove top portion, second sliding slot lower openings；First back-moving spring is arranged in second sliding slot.
The first back-moving spring, which is set in, to slide on column.
Described sliding insulates piece as tubular structure, slides and is provided at the top of packing piece and stores up what fluid outer wall was slidably matched
Centre bore；The height for sliding packing piece is less than positioning and snaps into the distance between shield top.
The second back-moving spring is set on storage fluid.
The shield includes ball-type bottom and top plate, and top plate is provided with the circular hole passed through for anti-blocking valve pipe, top plate
Sealing ring is provided between anti-blocking valve pipe.
The diameter of the ball-type bottom is less than the diameter of top plate.
The anti-blocking method of the waterpower opening and closing dual anti-blocking pile punching apparatus of jack-up unit, comprising the following steps:
In the downward injection of platform, anti-blocking valve pipe by elastic force and gravity tight against on shield, in vertical direction not
Stress, anti-blocking valve pipe will not uplink, realize it is anti-blocking；
If seabed silt breaks through the base surface of anti-blocking valve pipe and shield, slides packing piece and insulated anti-blocking valve pipe upper end
Water inlet, to realize that the second layer is anti-blocking；
When rushing stake operation, make anti-blocking valve Guan Shangti to open water outlet by the pressure to water inlet upper wall when water inlet, prevents
The stifled valve pipe upper end water pressure upward by direction will be up to cylinder slide slot in the middle part of end cap and topmost stop；Closing water
After stream, second back-moving spring makes to slide packing piece uplink and returns to initial position, in injection seabed during sand clay, prevents from rushing
Pile pipe line is blocked by silt.
Compared with prior art, the invention has the following advantages:
The present invention includes end cap, reset spring, anti-blocking valve pipe, slides packing piece and shield, is protected down by end cap
For the anti-blocking valve pipe in face from water flow impact pressure, intermediate cylindrical slide slot is anti-blocking valve pipe uplink to open the reserved row of water inlet
Journey space, anti-blocking valve pipe, by reset spring elastic force and self gravity tight against on the inside of shield, are reached at platform injection seabed
To water outlet it is totally-enclosed to realize choke preventing function, there are water inlets on top, when rushing stake, by hydraulic pressuring difference uplink, to open out
The mouth of a river carries out rushing stake operation；The water inlet for sliding packing piece closing anti-blocking valve pipe, realizes second layer choke preventing function, and by water
When stream impact downlink, water flow is made to enter anti-blocking valve pipe.The present invention realizes that anti-blocking and to rush stake mouth controllable by rushing stake water as power source
Function is opened and closed, additional power source and other electrical equipments are not needed.The present invention insulates anti-blocking valve pipe by packing piece is slided
Water inlet and anti-blocking valve pipe on shield tight against realizing dual anti-blocking effect.The configuration of the present invention is simple is reliable, no rapid wear
Components substantially increase the performance of pile punching apparatus.
Detailed description of the invention
Attached drawing described here is only used for task of explanation, and is not intended to limit model disclosed by the invention in any way
It encloses.In addition, shape and proportional sizes of each component in figure etc. are only schematical, it is used to help the understanding of the present invention, and
It is not the specific shape and proportional sizes for limiting each component of the present invention.Those skilled in the art under the teachings of the present invention, can
Implement the present invention to select various possible shapes and proportional sizes as the case may be.In the accompanying drawings:
Fig. 1 is half section structure diagram of the invention；
Fig. 2 is the top view of end cap of the present invention；
Fig. 3 is the front view of anti-blocking raft pipe of the invention.
Wherein: 1- slide slot, 2- end cap, 3- anti-blocking valve pipe, 4- positioning card, 5- sealing ring, 6- first back-moving spring, 7- into
Water hole, 8- slide packing piece, 9- water inlet, 10- second back-moving spring, 11- shield, the upper side wall of 12-, 13- retainer ring, 14- cunning
Row column, 15- store up fluid.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, below in conjunction with of the invention real
The attached drawing in example is applied, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work, all should belong to guarantor of the present invention
The range of shield.
It should be noted that it can directly on the other element when element is referred to as " being set to " another element
Or there may also be elements placed in the middle.When an element is considered as " connection " another element, it, which can be, is directly connected to
To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " horizontal ", " left side ",
" right side " and similar statement for illustrative purposes only, are not offered as being unique embodiment.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term as used herein "and/or" includes one or more phases
Any and all combinations of the listed item of pass.
Embodiment 1
As shown in Figure 1, a kind of waterpower of the present invention opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, comprising:
End cap 2,2 top surface of end cap is axially disposed slide slot 1, and 2 top surface of end cap was provided with along slide slot 1 one weeks
Multiple inlet openings 7；2 interior of end cap is provided with positioning card 4；
Shield 11, the shield 11 and 2 lower end of end cap are tightly connected；
Anti-blocking valve pipe 3, the anti-blocking valve pipe 3 include storage fluid 15 and slide column 14, and Chu Liuti 15 is closed at one end, another
End opening slides column 14 and connect with 15 closed end of storage fluid, slides column 14 and is mounted in the slide slot 1, Chu Liuti
15 open ends are protruded into shield 11；First back-moving spring 6 is provided between storage 15 end of fluid and end cap 2；The storage stream
Body 15 is circumferentially arranged multiple water inlets 9；
And packing piece 8 is slided, the packing piece 8 that slides is set in outside anti-blocking valve pipe 3, and slides packing 8 upper end of piece
Portion is limited by positioning card 4；It slides and is provided with second back-moving spring 10 between packing piece 8 and shield 11；
End cap 2 is equipped with slide slot 1, has the upper end of anti-blocking valve pipe 3, provides upstream space for it and protect it from downlink
The influence of impact of water；End cap 2 is equipped with 6 inlet openings；It slides packing piece 8 and connects second back-moving spring 10, sealed in initial position
The water inlet of anti-blocking valve pipe 3；Anti-blocking valve pipe 3 passes through 6 connection end cap 2 of first back-moving spring；3 lower end of anti-blocking valve pipe connects shield
11；3 upper end of anti-blocking valve pipe is equipped with 4 water inlets；Shield 11 is connected to the lower roof plate of jack-up unit shoe.
Wherein, when the open end of the storage fluid 15 of anti-blocking valve pipe 3 and 11 bottom of shield contact, water inlet 9, which is in, to be slided
Inside row packing piece 8, slides packing piece 8 and anti-blocking valve pipe 3 is tightly connected；When anti-blocking valve pipe 3 is moved upwards along slide slot 1,
The exposing of water inlet 9 is slided outside packing piece 8, and inlet opening 7 is connected to water inlet 9.
Wherein, the effect of each component is as follows:
(1) end cap 2: protecting following anti-blocking valve pipe 3 from water flow impact pressure, and intermediate cylindrical slide slot 1 is anti-blocking
3 uplink of valve pipe reserves stroke space to open water inlet.
(2) anti-blocking valve pipe 3: at platform injection seabed, by reset spring elastic force and self gravity tight against in shield
11 insides, reach water outlet it is totally-enclosed to realize choke preventing function, there are water inlets on top, when rushing stake, by hydraulic pressuring difference uplink,
To open water outlet, carry out rushing stake operation.
(3) slide packing piece 8: the water inlet of closing anti-blocking valve pipe 3 realizes second layer choke preventing function, and rush by water flow
When hitting downlink, water flow is made to enter anti-blocking valve pipe 3.
The operation principle of the present invention is that: in the downward injection of platform, anti-blocking valve pipe 3 is by elastic force and gravity tight against protecting
On cover 11, due to not stressing in vertical direction, anti-blocking valve pipe 3 will not uplink, reliably and effectively choke preventing function is realized, if seabed
Silt breaks through the base surface of anti-blocking valve pipe 3 and shield 11, then slides packing piece 8 and insulated 3 upper end water inlet of anti-blocking valve pipe, with
Realize second layer choke preventing function.When rushing stake operation, mention anti-blocking valve pipe 3 above to open by the pressure to water inlet upper wall when water inlet
Water outlet is opened, 3 upper end of the anti-blocking valve pipe water pressure upward by direction will be up to 1 the top of cylinder slide slot in the middle part of end cap
Stop；After closing water flow, reset spring makes to slide packing 8 uplink of piece and returns to initial position, and anti-blocking valve pipe 3 is in reset spring sheet
Embodiment provides a kind of waterpower opening and closing dual anti-blocking pile punching apparatus of jack-up unit, glutinous in jack-up unit shoe injection seabed sand
In the process of soil, the operating condition for preventing jetting pipeline from being blocked by silt occurs.
Preferably, the end cap 2 includes cylindrical barrel body and lid, and lid is arranged in cylindrical barrel body upper end, and
There are spacing with upper 12 top edge of side wall for lid；The positioning card 4 is circular ring structure；Positioning card 4 is arranged in cylindrical barrel body
Interior lower end.Slide slot 1 includes that the first sliding groove for sliding the sliding of column 14 and second for storing up 15 top slide of fluid are sliding
Slot, first sliding groove and second sliding slot are separately positioned on lid two sides, and sealing at the top of first sliding groove, first sliding groove bottom is slided with second
The connection of groove top portion, second sliding slot lower openings；First back-moving spring 6 is arranged in second sliding slot.
Preferably, first back-moving spring 6, which is set in, slides on column 14.The second back-moving spring 10 is set in
It stores up on fluid 15.
Preferably, the packing piece 8 that slides is tubular structure, slides to be provided at the top of packing piece 8 and flow with storage
The centre bore that 15 outer wall of body is slidably matched；Slide packing piece 8 height be less than positioning card 4 between the top of shield 11 away from
From.
Preferably, the shield 11 includes ball-type bottom and top plate, and top plate is provided with for anti-blocking valve pipe 3
The circular hole passed through is provided with sealing ring 5 between top plate and anti-blocking valve pipe 3.The diameter of ball-type bottom is less than the diameter of top plate.
Embodiment 2
As shown in Figure 1, a kind of waterpower opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, it mainly include end cap 2, anti-blocking valve
Pipe 3, reset spring slide packing piece 8, five parts such as shield 11 composition, and end cap 2 is fixed on jetting pipeline, and pass through the
One reset spring 6 is in close contact with anti-blocking valve pipe 3, and wherein the column joint of 3 upper end of anti-blocking valve pipe is located at the reserved cylinder of end cap 2
In shape slot；It slides packing piece 8 and positioning card 4 and second back-moving spring 10 is in close contact, anti-blocking valve pipe 3 is higher than on upright position
Four water inlets being equipped with, and it is in close contact therewith；Shield 11 is connect by screw thread with end cap 2, and close with anti-blocking valve pipe 3
Contact.
The working process of the invention is as follows:
The jack-up unit shoe of the waterpower opening and closing dual anti-blocking pile punching apparatus of jack-up unit is installed in injection seabed
In the process, anti-blocking valve pipe 3 is in close contact under the action of the elastic force of first back-moving spring 6 and self gravity with shield 11,
Since vertically upper anti-blocking valve pipe 3 does not stress, so seabed silt not can enter jetting pipeline；If seabed silt breaks through anti-blocking valve
The contact surface of pipe 3 and shield 11, enters in anti-blocking valve pipe 3, then slides the water inlet that packing piece 8 insulates anti-blocking valve pipe 3,
It prevents silt from traveling further into jetting pipeline, realizes the function of dual-plugging.
Be equipped with the waterpower opening and closing dual anti-blocking pile punching apparatus of jack-up unit rushes a system when carrying out rushing stake operation, holds
Lid 2 is equipped with 6 round inlet openings 7, rushes stake water and is thus acted on and slided on packing piece 8, slides packing piece 8 by effect of water pressure
The elastic force for overcoming second back-moving spring 10, moves downward, and the water inlet 9 of anti-blocking valve pipe 3 exposes, and rushes stake water through thus into anti-blocking
Valve pipe 3 rushes stake water and generates water pressure to the upper end in the upper wall edge and anti-blocking valve pipe 3 of water inlet 9, it is made to overcome the first reset bullet
The elastic force and self gravity of spring 6, move upwards along slide slot 1, and water outlet 9 is opened；After rushing stake operation, anti-blocking valve pipe 3 exists
The elastic force and self gravity of first back-moving spring 6 are kept in the center, and are slided packing piece 8 and are returned under the action of second back-moving spring 10
It is in situ, realize that waterpower opens and closes function.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
It should be noted that in the description of the present invention, term " first ", " second " etc. are used for description purposes only and distinguish
Similar object between the two and is not present sequencing, can not be interpreted as indication or suggestion relative importance.In addition,
In description of the invention, unless otherwise indicated, the meaning of " plurality " is two or more.
It should be understood that above description is to illustrate rather than to be limited.By reading above-mentioned retouch
It states, many embodiments and many applications except provided example all will be apparent for a person skilled in the art
's.Therefore, the range of this introduction should not be determined referring to foregoing description, but should referring to preceding claims and these
The full scope of the equivalent that claim is possessed determines.For comprehensive purpose, all articles and with reference to including patent
The disclosure of application and bulletin is all by reference to being incorporated herein.Appointing for theme disclosed herein is omitted in preceding claims
Where face is not intended to abandon the body matter, also should not be considered as applicant and the theme is not thought of as to disclosed hair
A part of bright theme.
Claims (10)
1. a kind of waterpower opens and closes the dual anti-blocking pile punching apparatus of jack-up unit characterized by comprising
End cap (2), the end cap (2) top surface is axially disposed to be had slide slot (1), and end cap (2) top surface was along slide slot (1) one week
It is provided with multiple inlet openings (7)；End cap (2) interior is provided with positioning card (4)；
Shield (11), the shield (11) and end cap (2) lower end are tightly connected；
Anti-blocking valve pipe (3), the anti-blocking valve pipe (3) include storage fluid (15) and slide column (14), and Chu Liuti (15) has storage
Flow chamber, Chu Liuti (15) is closed at one end, another end opening；It slides column (14) to connect with storage fluid (15) closed end, slide
Column (14) is mounted in the slide slot (1), and Chu Liuti (15) open end is protruded into shield (11)；Store up fluid (15) end
First back-moving spring (6) are provided between end cap (2)；The storage fluid (15) is circumferentially arranged to have multiple and storage flow chamber to connect
Logical water inlet (9)；
And packing piece (8) is slided, packing piece (8) of sliding is set in anti-blocking valve pipe (3) outside, and slides packing piece (8)
Upper end is limited by positioning card (4)；It slides and is provided with second back-moving spring (10) between packing piece (8) and shield (11)；
Wherein, when the open end of the storage fluid (15) of anti-blocking valve pipe (3) and shield (11) bottom contact, at water inlet (9)
It is internal in sliding packing piece (8), it slides packing piece (8) and anti-blocking valve pipe (3) is tightly connected；When anti-blocking valve pipe (3) is along slide slot
(1) when moving upwards, packing piece (8) outside is slided in water inlet (9) exposing, and inlet opening (7) are connected to water inlet (9).
2. waterpower according to claim 1 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
End cap (2) includes cylindrical barrel body and lid, and lid is arranged in cylindrical barrel body upper end, and lid is stayed with upper side wall (12) top edge
There is spacing.
3. waterpower according to claim 1 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
Positioning card (4) is the retainer ring (13) of circular ring structure；Positioning card (4) is arranged in cylindrical barrel body interior lower end.
4. waterpower according to claim 1 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
Slide slot (1) includes the first sliding groove for sliding column (14) sliding and second sliding slot for storing up fluid (15) top slide,
First sliding groove and second sliding slot are separately positioned on lid two sides, sealing, first sliding groove bottom and second sliding slot at the top of first sliding groove
Top connection, second sliding slot lower openings；First back-moving spring (6) is arranged in second sliding slot.
5. waterpower according to claim 1 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
First back-moving spring (6), which is set in, to slide on column (14).
6. waterpower according to claim 1 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
Sliding packing piece (8) is tubular structure, slides the center for being provided at the top of packing piece (8) and being slidably matched with Chu Liuti (15) outer wall
Hole；The height for sliding packing piece (8) is less than the distance between positioning card (4) to shield (11) top.
7. waterpower according to claim 1 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
Second back-moving spring (10) is set in storage fluid (15).
8. waterpower according to claim 1 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
Shield (11) includes ball-type bottom and top plate, and top plate is provided with the circular hole passed through for anti-blocking valve pipe (3), top plate and anti-blocking valve
Sealing ring (5) are provided between pipe (3).
9. waterpower according to claim 8 opens and closes the dual anti-blocking pile punching apparatus of jack-up unit, which is characterized in that described
The diameter of ball-type bottom is less than the diameter of top plate.
10. the anti-blocking method of the described in any item waterpower opening and closing dual anti-blocking pile punching apparatus of jack-up unit of claim 1 to 9,
Characterized by comprising the following steps:
In the downward injection of platform, anti-blocking valve pipe (3) by elastic force and gravity tight against on shield (11), in vertical direction
Do not stress, anti-blocking valve pipe (3) will not uplink, realize it is anti-blocking；
If seabed silt breaks through the base surface of anti-blocking valve pipe (3) and shield (11), slides packing piece (8) and insulated anti-blocking valve
(3) upper end water inlet is managed, to realize that the second layer is anti-blocking；
When rushing stake operation, mention anti-blocking valve pipe (3) above to open water outlet by the pressure to water inlet upper wall when water inlet, it is anti-blocking
Valve pipe (3) the upper end water pressure upward by direction will be up to cylinder slide slot (1) in the middle part of end cap (2) and topmost stop；?
After closing water flow, second back-moving spring (10) makes to slide packing piece (8) uplink and returns to initial position, the sand clay in injection seabed
In the process, prevent jetting pipeline from being blocked by silt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651485.3A CN110374078B (en) | 2019-07-18 | 2019-07-18 | Double anti-blocking pile-punching device and method for hydraulic start-stop self-elevating platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910651485.3A CN110374078B (en) | 2019-07-18 | 2019-07-18 | Double anti-blocking pile-punching device and method for hydraulic start-stop self-elevating platform |
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| Publication Number | Publication Date |
|---|---|
| CN110374078A true CN110374078A (en) | 2019-10-25 |
| CN110374078B CN110374078B (en) | 2020-09-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022262186A1 (en) * | 2021-06-18 | 2022-12-22 | 广东精铟海洋工程股份有限公司 | Self-elevating exploration platform |
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| US4505617A (en) * | 1979-10-12 | 1985-03-19 | National Research Development Corporation | Stabilizing bluff structures against oscillation |
| JP2007130570A (en) * | 2005-11-10 | 2007-05-31 | Yasumoto Itojima | Ejection nozzle |
| CN201221624Y (en) * | 2008-06-18 | 2009-04-15 | 中国海洋石油总公司 | Self-elevating drilling platform pile rushing valve |
| CN203755310U (en) * | 2014-02-20 | 2014-08-06 | 中国海洋石油总公司 | Pile washing nozzle of self-elevating platform pile shoe |
| CN105369789A (en) * | 2015-09-28 | 2016-03-02 | 南通中远船务工程有限公司 | Self-elevating platform pile washing system structure |
| CN106812127A (en) * | 2017-03-14 | 2017-06-09 | 西安石油大学 | Stake system is rushed in a kind of self-elevating ocean platform shoe for preventing jetting pipeline from blocking |
| CN207159978U (en) * | 2017-08-25 | 2018-03-30 | 招商局重工(深圳)有限公司 | One kind rushes pile pipe and its spout structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022262186A1 (en) * | 2021-06-18 | 2022-12-22 | 广东精铟海洋工程股份有限公司 | Self-elevating exploration platform |
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